212110000120 has 64 divisors (see below), whose sum is σ = 483901960320. Its totient is φ = 83661548544.

The previous prime is 212110000103. The next prime is 212110000121. The reversal of 212110000120 is 21000011212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 212110000097 and 212110000106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110000121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19567342 + ... + 19578178.

It is an arithmetic number, because the mean of its divisors is an integer number (7560968130).

Almost surely, 2^212110000120 is an apocalyptic number.

212110000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110000120 is an abundant number, since it is smaller than the sum of its proper divisors (271791960200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212110000120 is a wasteful number, since it uses less digits than its factorization.

212110000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17624 (or 17620 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212110000120 its reverse (21000011212), we get a palindrome (233110011332).

The spelling of 212110000120 in words is "two hundred twelve billion, one hundred ten million, one hundred twenty", and thus it is an aban number.